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Tangents are drawn to the parabola y^2=4...

Tangents are drawn to the parabola `y^2=4x` at the point P which is the upper end of latusrectum . Radius of the circle touching the parabola `y^2=4x` at the point P and passing through its focus is

A

1

B

`sqrt2`

C

`sqrt3`

D

2

Text Solution

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The correct Answer is:
B
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